baber/WOPTO huggingface dataset:
Patent GB-1087021-A (GB)
Title: Means for synchronising the frequencies of an alternator and an a.c. signal
Inventor: SINCLAIR WALTER
IPC: H02J3/42
Filed: 1964-01-30
Abstract: 1,087,021. Automatic speed control. ROTAX Ltd. Jan. 8, 1965 [Jan.30, 1964], No. 3954/64. Heading G3R. To maintain the speed of an alternator 21 in synchronism with a separate A.C. source (second alternator or bus-bars) the transistor circuit shown produces pulses at beat frequency which switch transistors in the charging circuit of capacitors C3, C4, the charge determining the output on terminals MN and the arrangement is such that a frequency difference causes one to become negative with respect to the other, depending upon whether the alternator is faster or slower than the A.C. source, by an amount approximately proportional to the integral of the error. The terminals NM are connected to a speed control circuit Fig. 2 (not shown) in which the voltage of N is algebraically added to that derived from a speed reference potentiometer (65) controlling the conduction of a transistor (67) which through a device (66) controls the speed of the alternator (21).
Patent GB-150942-A (GB)
Title: Improvements in refrigerator car constructions
IPC: B61D27/00
Filed: 1920-02-10
Abstract: 150,942. Todd, G. B. Feb. 10, 1920. Refrigerator cars.-In a refrigerator car having inner and outer walls 10, 11 with vacuum insulation, channelled bracing-members 15 are arranged between the walls and provided with insulating means to prevent their conducting heat from the outer to the inner walls. In the construction shown, the members 15 are secured to the inner walls by means of flanges 22, and are insulated from the outer walls by means of slabs 14 of cork or like material located in a channelled flange 23 of the bracing-member. The evacuated space between the walls may be filled with insulating-material such as mineral wool or asbestos, while holes 24 are drilled in the bracing- members so as to connect the spaces on each side of the members.
Patent GB-162428-A (GB)
Title: Improvements in or relating to apparatus for use in testing electric lamps, fuses, sparking plugs, and induction coils
IPC: G01R31/00
Filed: 1920-02-10
Abstract: 162,428. Wolff, W. S. Feb. 10, 1920. Combinations of instruments; current detectors. -An apparatus for testing sparking-plugs, induction coils, fuses, and lamps comprises a casing 7 containing a battery and having a chamber 11, open at one end, into which a standard induction coil may be slidden so that its contact plates 14, 15, 16 engage springs. On the casing 7 are mounted an ammeter 34, a fuse-holder 23, lampholders 28, 29 for screw-capped and bayonetcapped lamps respectively, and a switch button 31 for completing the primary circuit. An induction coil of other than standard size may be tested by connecting its primary terminals to terminals 36<xx> on the acsing and connecting a wire 47<x> to its secondary terminal. On the top of the casing 7 is mounted a metal cylinder 42 into which a spark-plug 43 to be tested is screwed. A current of air under pressure is passed through the cylinder 42 as described in Specification 149,180, its pressure being indicated on a gauge 51.
Patent GB-124028-A (GB)
Title: Improvements in Milling-cutters.
Inventor: KEISER JAN
IPC: B27G13/14
Filed: 1918-03-08
Abstract: 124,028. Keiser, J. March 8, 1918. Cutters. - Milling-cutters, more especially for cutting grooves of circular, triangular, &c. section in wood, where a narrow slot communicates with the groove, are made in the form of an open ring- shaped or triangular cutting- tool b with sharp edges at opposite sides.
Patent GB-999524-A (GB)
Title: An improved method and apparatus for the manufacture of hollow concrete bodies
Inventor: ROBERTS WILLIAM KENNETH
IPC: B28B7/28
Filed: 1964-01-31
Abstract: 999,524. Casting concrete. DOW-MAC (PRODUCTS) Ltd. Jan. 31, 1964, No. 4110/64, Heading B5A. Hollow concrete bodies, e.g. pipes, are cast in a mould around tapered cores comprising tensioned wires covered by a flexible sheet material, the wires being withdrawn from the finished body subsequent to the moulding. In the embodiment shown, in which a plurality of bodies are cast in a collapsible mould 4, 5, 6, the core wires are tensioned between members 3 and are internally supported within the mould by diaphragm 8, around the notched peripheries of which the wires pass. The wires are constrained between walls 6<SP>1</SP>, which separate the cast bodies, by rings 7. The diaphragms 8 are located correctly within the mould between lower members 10 and pads 14 which abut pins 13 carried by cross members 11 which are supported by mould side walls 5. The pins 13 are longitudinally adjustable in member 11 by means of grooves 15 and co-operating keyhole shaped aperture 12 so that diaphragms of varying size may be used to vary the taper of the wires. In another embodiment rings 7 may be dispensed with.
Patent GB-1340639-A (GB)
Title: Cleaning mechanism for vehicle headlamps
IPC: B60S1/60
Filed: 1972-01-28
Abstract: 1340639 Cleaning vehicle headlamp glasses W EVRARD 28 Jan 1972 [2 Feb 1971] 4164/72 Heading A4F  A vehicle headlamp glass 1 is cleaned by squeegees 15 on helically shaped arms 3, 4 rotatable abut a stem 5 at the centre of the glass 1 by the force of the wind set up by the advance of the vehicle. The arms 3, 4 are carried by members 7 attached by hinges 9 to a hub 8 rotatable on the stem 5. The squeegees 15 are pressed against the glass 1 by the centrifugal force acting on the arms 3, 4, the pressure and thereby the speed of rotation of the arms 3, 4, being regulated by a tension spring 11 connecting the outer ends of the members 7. Cleaning liquid may be supplied to the headlamp glass via a pipe (not shown). Supplementary wings may be provided at the free ends of the arms 3, 4 to increase the effect of the wind.
Patent GB-554955-A (GB)
Title: Improved process for the manufacture of refractory articles
IPC: C04B33/13
Filed: 1942-03-30
Abstract: 554,955. Refractory articles. THERMAL SYNDICATE, Ltd., and PEEL, G. N. March 30, 1942, No. 4186. [Class 22] A refractory article is made by mixing one or more powdered oxides such as alumina, beryllia, ceria, magnesia, titania, thoria, or zirconia with a binder comprising a compound of a metal, other than that of the powdered oxide, or oxides, with stearic, palmitic, linoleic, naphthenic, or other fatty or aromatic acid, suspended in an organic liquid, and drying and firing the resulting plastic mass so that the metal stearate &c. of the binder is converted to oxide. Preferably the metal oxide thus formed is compatible as to acidity or basicity with the principal oxide. Specification 531,676 is referred to.
Patent GB-547685-A (GB)
Title: Improvements in or relating to electrically driven vehicles
IPC: B60L7/24
Filed: 1941-03-28
Abstract: 547,685. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., CROFT, E. H., and TURRALL. J. C. March 28, 1941, No. 4211. [Class 38 (iii)] Field control ; dynamo-electric braking. A vehicle having a single control means for rheostatic and mechanical braking has at least the shunt field winding of the motor disconnected by means dependent on the voltage or current in the armature circuit falling to a low value. A relay 24 is energized through a back contact 25 on the braking contactor 5. When this contactor closes in position I of the pedal operated drum controller 2 it remains energized through maintaining contact 23 of the relay until position II, in which the relay is held by a maintaining coil 26 subject to voltage or current of the armature 3. This relay completes the circuit of actuating coil 7c of the shunt field contactor 7 at a contact 21 which opens when rheostatic braking is weak and the relay becomes insufficiently energized. The controller 2, which actuates a mechanical brake in position III, has to be returned to the ' off ' position to de-energize the braking contactor 5 before the relay can be re-energized. In a modification dispensing with segment 19 a beam relay has a spring, normally closing contacts in the circuit of the shunt field contactor, assisted by a coil responsive to the armature volts or current and opposed by a coil in the shunt field circuit which overcomes the spring when the braking is weak. The latter coil is maintained energized until the braking contactor has opened or the relay has operated. Specification 547,675 is referred to.
Patent GB-104563-A (GB)
Title: Improvements in Sheet Supporting and Feeding Devices for Typewriting Machines.
Inventor: FAIRWEATHER HAROLD GEORGE CRUI
IPC: B41J11/34
Filed: 1916-03-22
Abstract: 104,563. Fairweather, H. G. C., (Underwood Typewriter Co.). March 22, 1916. Sheet feeding and guiding arrangements; p a p e r shelves.-In devices for collating a sheaf of sheets and feeding them to the platen, comprising an endless feeding-band and register pins for engaging perforations on the sides of the sheets, means is provided for retracting the pins and pressing the sheets against the feeding-band when the pins are retracted. As shown, a wide endless band 16 passes over rollers 17, 18, 15 on a frame consisting of sides 19, 20 and cross-bars 21, 22, the top reach of the band forming an extension of the apron 6 and serving as a shelf. The frame is detachably supported on a rod 24 of the platen frame by lugs 23, 25 on the sides 19, 20, the lugs 23 passing behind the apron. The register pins 27, Fig. 5, are secured to bars 28 carried by shafts 35 provided with arms 36 engaging arms 38 on shafts 39, 44, which support feediollers 32 arranged over the rollers 17, 18, 52. Each roller 32 is journaled in a frame 40 trunnioned in arms 42 on a sleeve 43, which is mounted on the shaft 39 or 44 and is pressed towards the band by a spring 45. The shafts 39, 44 are provided with pins 47 engaging slots in the sleeves 43, the arrangement permitting the rollers to adjust themselves to the web independently. On lifting a lever 30 or 31. the feed-rollers are lifted from the band, and springs 51 are permitted to lift the bars 28. A bar 28 and set of pins 27 may be provided at one side only of the band. The shafts 39, 44 may be geared together by means of a shaft 62. To facilitate the assembling of the sheets on the register pins, the perforations 26 are indicated on the backs of the sheets by members which are erect in the assembling position of the sheets, that is facedownwards and with the leading edges at the bottom. The perforations are also numbered on the front of the sheets, these numbers being erect when the sheets pass over the platen.
Patent GB-548261-A (GB)
Title: Air mine
IPC: F41H11/04
Filed: 1941-03-31
Abstract: 548,261. Aerial mines. FERMOR,A.J. March 31, 1941. No. 4273. [Class 9 (ii)] An anti-aircraft device or air mine consists of a container containing a high explosive charge suspended by a long wire from a balloon which is fitted with an adjustable automatic valve adapted to release gas at a given height so that the -mine remains at this height. A number of mines may be arranged to rise to different heights to form a defence curtain. The mine may be exploded by direct contact of an aircraft with the container, by the jerk on the suspending wire if this is hit or by the container being caused to swing backwards to hit the aircraft when the wire is hit. Electric or magnetic means may also be used to detonate the charge, for instance, the container may be suspended by a pair of batteryconnected wires the circuit of which is completed by contact with an aircraft. A time fuze may be provided to destroy the mine if it has not been exploded by an aircraft and if the balloon bursts the charge may be exploded during descent by the action of air pressure on a diaphragm or by the rotation by the air of a propeller device.
Patent GB-752902-A (GB)
Title: Improvements in or relating to crossbar switches
IPC: H01H67/26
Filed: 1954-02-12
Abstract: 752,902. Automatic exchange switches. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 12, 1954 [Feb. 14, 1953], No. 4278/54. Class 40 (4). In a cross-bar switch a selecting bar unit (Figs. 2, 3) comprises two groups of vertical conductors 19, one group on each side of the metal sheet 11, each group having contact springs 18 with cylindrical silver contacts 18a. Each group 19 has an associated selecting bar 14 and an electromagnet 17a or 17b. Each set of contact springs may be raised by a lifting bar 16 individual to the set, each bar having an extension 16a (Fig. 3) on which an indicating means 15 is mounted so as to be free to rotate. Springs 21 urge the indicating means 15 anticlockwise but they are normally held in the position shown in Fig. 2 by engagement of the flaps 15c against shoulders provided on the respective selecting bars 14. The tongue 11a on the metal sheet 11 serves to locate the operating bar units 2 (Figs. 1, 2) with respect to the contact springs 18, the contacts 18a entering holes in the units 2. Operation of a selecting magnet 17a or 17b moves the corresponding selecting bar 14 downwards, whereupon the relevant indicating means 15 rotates under the action of the corresponding spring 21, the flap 15a being thus pressed against the operating bar 6. On operation of the operating magnet 5 (Fig. 1), the operating bar 6 then lifts the indicating means 15 which in turn lifts the lifting bar 16 to bring the contacts 18a into contact with the horizontal conductors 2a. On the release of the selecting magnet the selecting bar 14 is restored to the position shown in Fig. 2, and can thereafter be raised and lowered without affecting the raised indicating means 15. The release of the operating magnet 5 effects restoration of the operating bar 6 and lifting bar 16.
Patent GB-630902-A (GB)
Title: Improvements in and relating to folding and sliding doors
IPC: E06B3/48
Filed: 1947-02-14
Abstract: 630,902. Sliding doors. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., LEONARD, J. W., and HOWLETT, A. D. Feb. 14, 1947, No. 4292. [Class 20(iii)] In a folding-sliding door composed of hinged pairs of narrow panels hinged at their outer edges to columns moving in guide tracks at top and bottom of the opening, each column 18 is a single extrusion in aluminium alloy with retroverted wings 22 on its inner flange 20 and oblique wings 23 on its outer flange 21 with end portions 24 at right angles, wings 23 being perpendicular to the plane of the panels when the door is fully extended. In this position the butt ends of the panels engage rubber strips 26 inserted in dovetail slots in wings 23. The panels comprise a framework of styles 3 connected by rails 10 and oblique braces 15 all of extruded channelled sections of alumimium alloy, and some or all of the transverse members having slots 14 in their webs, enabling the style flange 4 to lie inside the flange 12 of the slotted member on the inner face of the panel this flange abutting on a shoulder 5 of the style flange, whilst the outer flanges 11, 17 of all the transverse members lie inside the outer flange 8 of the styles. Heat-insulating material on the inner face is secured to the rail flanges 12 its upright edges butting against an extension 7 of the web 6 of the styles. The skin of the outer face of aluminium alloy is vertically corrugated and secured both to flanges 8 and 11 and 17. At the hinge joint between two panels the styles carry packing strips as of wood, one holding a rubber &c. strip which fits into a hollow in the other.
Patent GB-1107745-A (GB)
Title: Substituted benzoic acid lactones having estrogenic activity
IPC: A23K1/16
Filed: 1966-02-01
Abstract: Novel compounds of the formula <FORM:1107745/C2/1> wherein R is a hydrogen atom or an alkyl, aryl, bromoaryl, carboxylic acyl or aralkyl group, the R groups being the same or different, are obtained by hydrogenating an olefinic compound of the formula <FORM:1107745/C2/2> under conditions such that only the olefinic bond is reduced, one or both of the phenolic groups optionally being etherified or acylated before or after the hydrogenation. Therapeutic compositions having estrogenic properties and useful for promoting the growth of meat-producing animals, contain the above compounds as active ingredient.  The composition may be in a form suitable for oral or parenteral application, e.g. as a constituent of an animal foodstuff.  Reference has been directed by the Comptroller to Specification 951,349.
Patent GB-290724-A (GB)
Title: Improvements in tone current generators
IPC: H04M19/02
Filed: 1927-02-17
Abstract: 290,724. Automatic Telephone Manufacturing Co., Ltd., and Rayner, T., R. Feb. 17, 1927. Automatic exchange apparatus. - Busy tone current for automatic telephone systems is obtained from a generator comprising an iron core choke K, a limiting resistance R, and the primary P of a transformer T connected across the exchange battery in series with an interrupter I shunted by a condenser C1, from the terminals of which busy tone is obtained through a filter circuit at B, B1. A condenser C prevents hum being transmitted to other apparatus fed from battery. To obtain " number unobtainable" {one', the secondary S of the transformer T is shunted by a condenser C4 to form an oscillatory circuit. The primary PI of a second transformer T1 is connected to the termnials of the condenser C4, one side of the primary P1 being earth-connected, while the other side is connected to conductor NUT from which " number unobtainable " tone for selector switches is obtained. NU tone for connector switches is obtained from the conductor NUT1 connected to one side of the secondary S1 of transformer T1, the other side being connected to battery potential to prevent faulty metering. The filter circuit comprises air core chokes K1 - - K3, and condensers C1 - - 03, and acts to eliminate harmonics. Instead of an interrupter, a thermionic valve oscillator with or without a filter, or an alternator could be used.
Patent GB-924339-A (GB)
Title: Improvements in or relating to noble combs
IPC: D01G19/02
Filed: 1961-02-07
Abstract: 924,339. Combing-machines. A. H. WILBY. Feb. 7, 1962 [Feb. 7, 1961], No. 4483/61. Class 120 (1). A Noble comb is provided with a suction apparatus having nozzles adjacent to the noil knives in order to deliver noil sucked off the small circles to a collecting chamber. Each small circle 12 is provided with a suction pipe 16 and the outlet end of each pipe is connected to a centrifugal fan associated with a collecting chamber which is so arranged that noil is deposited directly into a truck below the chamber. The noil output of several combs may be delivered to one collecting chamber.
Patent GB-382168-A (GB)
Title: Improvements in processes of and devices for connecting together individual articlesand the like
IPC: B23K1/00
Filed: 1932-02-16
Abstract: 382,168. Parcelling nails, pins, &c. KAMMER, K., 13, Luisenstrasse, Lahr, Baden, Germany. Feb. 16, 1932, No. 4616. Convention date, Oct. 31, 1931. [Class 94 (i).] Small articles such as nails, pins and packing pieces are connected together, and their dimensions changed uniformly, by a metal spraying process. Similar pieces of material l are connected by being passed along a saddle d underneath a sand blast g to a spraying pistol h where a jet of metal powder such as tin, zinc, aluminium or chrome is sprayed on through the adjustable opening k ; regular lengths of the connected pieces are then broken off by the member m. The metal in the pistol h is rendered molten by a blow-pipe flame, electricity or by means of highly-heated gases. It is also stated that articles of celluloid may be treated in this manner.
Patent GB-198014-A (GB)
Title: Improvements in ignition devices of internal combustion engines
IPC: F02P5/06
Filed: 1922-02-16
Abstract: 198,014. Royce, F. H. Feb. 16, 1922. Timing.-Automatic adjustment of the ignition timing is obtained by the centrifugal action of four masses e which are disposed at the corners of a square or rectangle. Diagonally-opposite masses are connected by bars e<5>, e<6>, which rock about an axle c<4> secured transversely in a chamber or enlargement c rigidly combined with the driving-shaft c', the chamber having also an extension c which surrounds the driven shaft d. To the end of the shaft d is fixed a flat member e<15> having slots in one or both ends for engaging spherical projections e<14> from the bars e<5>, e<6>. The action of the masses e results in moving the projections e<14> from one side to the other of the plane containing the axes of the shafts b, d, and c<4>. One or a pair of springs coiled about the spindle c<4>, with the projecting ends pressing against the masses e tend to counteract the centrifugal effect.
Patent GB-525043-A (GB)
Title: Process for reducing vegetables containing starch to a dry powder
IPC: A23L19/15
Filed: 1939-02-13
Abstract: 525,043. Potato &c. flour. VOLPERTAS, Z. Feb. 13, 1939, No. 4664. Convention date, Feb. 17, 1938. [Class 49] In the reduction of farinaceous vegetable, e.g., potato, to dry powder, wherein the vegetable is first boiled, dry powder obtained from the same vegetable is added either to the freshly boiled vegetable, or to the boiled vegetable after it has been reduced to a damp powder, .before the final drying step. The mixture containing the dry powder may be treated in vacuo. Specification 496,423 is referred to.
Patent GB-1283336-A (GB)
Title: Cobalt base coating for superalloys
IPC: C22C19/07
Filed: 1970-01-30
Abstract: 1283336 Cobalt based coating composition UNITED AIRCRAFT CORP 30 Jan 1970 [31 Jan 1969] 4685/70 Headings C7A and C7F An alloy composition comprises in per cent by weight: Cr 15-40 Al 10-25 Y and or R /E 0.01-1 Co balance The alloy may be used as a coating composition for nickel or cobalt based super alloys in the form of gas turbine engine components. The coating thickness is preferably at least 76À2 Á, and may be applied by melting the coating alloy under a vacuum in which is also placed the component to be coated. The component may be pre-heated to 954 Œ 10‹C. this temperature being maintained during coating. The coating may then be heated for 1 hour at 1038 Œ4‹C. under vacuum, dry glass bead peened, and thereafter heated to 1080 Œ 4‹C. in argon, hydrogen or under a vacuum.